Digital safety relay



FIG. 1 is a front left side isometric view of a digital safety relay in accordance with the new design;

FIG. 2 is a left side elevation view thereof;

FIG. 3 is a right side elevation view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a front elevation view thereof; and,

FIG. 7 is a rear elevation view thereof.

The broken lines in the drawings illustrate portions of the digital safety relay that form no part of the claimed design. 

CLAIM The ornamental design for a digital safety relay, as shown and described. 